Foe spinnina spindles



(No ModeL) Q A. R. SHERMAN. BEARING FOE SPINNING SPINDLES.

Patented Ju1y 4., 18. 82.

INVENTOR:

WITNESSES TORN ' n Pains} PlmLilhn nphor. Wm 04:

UNITED STATES PATENT OFFICE.

ALBERT R. SHERMAN, OF PAWTUOKE'I, REIODE ISLAND.

BEARING FOR SPINNING-SPINDLES.

SPECIFICATION forming part of Letters Patent No. 260,711, dated July 4, 1882.

Application filed July 29, 1881. Renewed April 26, 1882. (No model.) i

To all whom it may concern Be it known that I, ALBERT R. SHERMAN, of Pawtucket, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Bearings for Spinning-Spindles, of which the following is a specification.

The object of this invention is to cushion the bolster and step of a spinningspindle so that the usual heavy jarring motion of said parts may be prevented and the spindle be run at a high rate of speed because of being free to oscillate or vibrate and conform itself to the uneven motion given by imperfect bobbins or caused by the pull of the yarn from the traveler.

The invention consists in the combination of the bolster provided with a collar, the elastic cushions on opposite sides of the said collar, and the thimble with the bolster-case provided with an annular shoulder, and the spindle stepped in the said bolster, all as hereinafter fully described.

In the accompany ing drawings, Figure 1 is an elevation, partially in vertical section, showing the bolster-case, bolster, and spindle constructed with my improvements. Fig. 2 is an elevation showing my improvement with bolster-case and whirl in section.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the bolstercase, provided with an interior annular shoulder, a, above which shoulder a said case A is internally screw-threaded, as shown at b.

B represents the bolster, provided atitslower end with the block (I, on which the lower end of the spindle G is stepped, and about its center with a flange or collar, 0, by means of which it is supported on the bolster-case shoulder a, said collar 0 being somewhat rounded on its edges to permit the rocking of the bolster. To prevent, however, the contact and wear of hard unyielding surfaces, and to give to the bolster B the desired freedom of lateral movement, an elastic washer or cushion, O, of leather or other suitable material is placed on the shoulder a to receive the collar 0. For the same reason an auxiliary washer or cushion, D, is set on the upper face of the collar 0, and above and in contact with said cushion D is a spiral spring, E.

To prevent the excessive movement of the bolster B, a thimble, F, is screwed into the case A down upon the spring E, whereby the tensionof said spring E, and thereby the compression and consequent elasticity of the cushions 0 D, may beregulated or adjusted, according to the character of the work to which the spindle G, provided'with a whirl,G, whose center is exactly opposite the center of the collar c, is applied, and by means of the adjustable thimble Fand spring E the wear on the cushions O D can be compensated.

The spindle, being stepped in the yielding or oscillating bolster, is permitted to vibrate freely with the said bolster, so that it can be run more easily, steadily, and at a higher rate of speed,

the oscillating bolster also giving the spindle freedom to rock slightly for the purpose of maintaining its center of gravity when carrying an unevenlywound bobbin. The use of the spring E is not indispensable in all cases.

as the cushions G D may be made sufficiently elastic for the intended purposes and the thimble F be screwed down on the cushion D, thus compressing the collar 0 between the cushions O D in such a manner as to allow sufficient play to the said bolsterB.

Having thus described my invention, I claim as new and desire to secure by Letters Patent The combination of the bolster B, provided with the collar 0, theelastic cushions O D on opposite sides of the said collar, and the thimble F with the bolster-case A, provided with the annular shoulder (1,11Ild the spindle Gr, stepped in the said bolster, whereby the jarringmotion is prevented and the spindle adapted to be run at a higher rate of speed, substantially as set forth.

ALBERT R. SHERMAN. Witnesses:

I. I. STORER, O. SEDGWICK. 

